Home / 975,645.28-1,463,467.92-643,143.52

Finding the Fourth Proportional to 975,645.28, 1,463,467.92 and 643,143.52

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Solution

The fourth proportional to 975,645.28, 1,463,467.92 and 643,143.52 is: 964,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,645.28 : 1,463,467.92 = 643,143.52 : x
  2. Step 2: Convert to fraction form
    975,645.28/1,463,467.92 = 643,143.52/x
  3. Step 3: Cross multiply
    975,645.28x = 1,463,467.92 × 643,143.52
  4. Step 4: Simplify right side
    975,645.28x = 941,219,909,475.88
  5. Step 5: Solve for x
    x = 941,219,909,475.88/975,645.28
  6. Step 6: Final answer
    x = 964,715.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.